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Nrrnn STATES Pari-:N trice..

GEORGE G. PREFANTAINE, OF WHITEHALL, NEW YORK, ASSIGNOR OF ONE-HALF TOCHARLES O. WETMORE, OF SAME PLAGE.

OILCUP.

SPECIFICATION forming part of Letters Patent No. 390,986, dated October9, 1888,

Application filed March 16, 1888. Serial No. 267,363. (Model.)

To all whom it may concern:

Be it known that I, GEORGE G. PREFAN- TAINE, a citizen of the UnitedStates, and a resident of Whitehall, in the county of Washington andState of New Yorlghave invented certain new and useful Improvements inOil- Oups; and I do hereby declare that the following is a full, clear,and exact description of the invention,which will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, which form a part ofthisspeciication, and in which- Figure 1 is a central vertical sectionalview of my improved oil-cup, showing the parts within the same in sideview. Fig. 2 is a central vertical sectional view of the cup and of allthe parts within it. Fig. 3 is a similar view of the lower portion ofthe cup with the parts in the opposite position from that shown in Fig.2.

The same numerals of reference indicate the same or corresponding partsin all the tigures.

My invention has relation to' that class of oil-cups for lubricating thecylinders, valvechests, or similar parts of engines, pumps, and similarmachinery, in which the pressure of the fluid in the cylinder to belubricated will close a valve, which will open another valve, admittinga quantity of the lubricant above the first Valve, which will pass outof the cup when the valve is opened by the release of the pressure inthe cylinder, the cup thus feeding the lubricant by the alternatingpressure and release of the fluid generating the motion in the engine tobe lubricated; and it consists in the improved construction andcombination of parts of such an oil-cup, as hereinafter more fullydescribed and claimed.

In the accompanying drawings, the numeral 1 indicates a cylindricalcasing, which is preferably formed with vertical slots 2, through whichan inner cylinder, 3, of glass is visible, these slots and the innercylinder enabling the contents of the oil-cup to be inspected.

The top of the cup is formed with a central screw-threaded aperture, 4,in which a screwthreaded cap or stopper, 5, having a handle, 6, fits,and through which aperture the cup may be filled.

The bottom of the cylinder is formed with a central aperture, 7, inwhich is screwed a nipple, 8, having an axial chamber, 9, contracted atits upper aud lower ends, and formed with an upwardly-facing valve-seat,10, at the up,

per end, slightly above the bottom of the cylinder, and with adownwardly-facing lower valve-scat, 11, a distance from the lower end,the lower portion, 12, of the nipple 8, below the lower valve-seat,being reduced, and having perforations 13 in the sides.

A nozzle, 14, is screwed with its upper end upon an externalscrew-thread, 15, upon the lower reduced portion of the nipple 8, and isformed with a fiat seat, 16, in its lower end, the discharge channel oraperture 17 opening through this seat.

A valve, 18, may rest with its flat and grooved :or notched lower faceupon the seat 16, and may fit with its conical upper side upon thedownwardly-facing valve-seat 11, and the stem 19 is formed with anenlargement, 33, above the valve, which fits in the lower contraction inthe bore of the nipple, and is provided with longitudinal grooves 34 34.

Near the upper end of the stem 19 an adjustable collar, 20, is secured,against which the lower edge of a hollow lower stem, 2l, of a valve, 22,may rest, the said collar gaging the downward play of the valve.

A cap, 24, is secured upon the upper end of the nipple 8, and isprovided with a tubular extension, 25. Longitudinal slots 26 are formedat the base of this extension,which are opened or closed by means of theadjustable collars 27, that are secured upon the exterior oftheextension. The top of the cap 24 is provided with a Valve-seat, 23,against which the upper face of the valve 22 bears when it is raised bythe pressure of the motive fluid upon the lower end of the valve 18. Acircumferential groove, 29, is formed around the stem 21 where itjoinsthe valve 22, from which groove perforations 30 lead into the interiorof the stem. The exterior of this stem of the valve 22 is provided withgrooves 28, while the stem 31 upon the upper portion of the valve, whichfits within the hollow of the extension 25, is provided with grooves 82.

In operation the nozzle 14 of the oil-cup is IOO screwed into a suitableaperture in the cylinder, valve-chest, or other machine part to belubricated, and the glass cylinder 3 filled with oil and the size of theapertures 2G 26 properly adjusted by means of" the collars 27. The oilthen passes through the apertures 26 into the interior of the cap 24,but is prevented i'roin going farther by reason ofthe valve 22. Vhen themachine is in motion, the motive iluid enters the cup through theaperture 17 in the nozzle 14, and bears against the lower end of thevalve 1S and lifts it from its seat. As the valve 18 is thus lifted np,the collar 20 upon the stein 19 is brought against the lower end of thehollow stein 21 and lifts the valve 22 from its seatand raises it upuntil the upper face of the valve bears against the valve-seat 23 andprevents any more oil from entering the cap 24, and also prevents thesteam from escaping into the glass cylinder 3. As soon as .the valve 22is raised from the seat 10, the oil passes from the interior of the cap24 down into the chamber 9 of the nipple 8, from whence it passesthrough the channels 34 of the valvestem 19 down into the lower portionof the nipple, where it is stopped by the upper face of the valve 18bearing against the valve-seat 11. YVhen the exhaust takes place, thevalve 18 drops toits lowest point, and with it the valve 22, which thuscloses the passage between the interior of the cap 24 and the chamber 9,and prevents the passage of more oil until the valve is again raised bythe admission of motive fluid to the lower portion of the valve 1S. Atthe same time that the passage between the interior of the cap 24. andthe chamber 9 is closed the passage between the cylinder 3 and theinterior of the cap is open, and a fresh supply of oil is admitted totheinterior of the cap 24. During the exhaust of each stroke the oilwhich has thus slowly worked its way to the lower portion ofthe oilcupas the valves 18 and 22 have alternately been opened and closed, asbefore described, is drawn down through the aperture 17 to the portionof the machine which is to be lubricated.

The lubricant will pass out into the nozzle through the perforations inthe lower contracted end of the nipple, and the motive fluid, which hasentered the chamber in the nipple through the axial bore of the valveand stein, will assist in forcing the lubricant out of the chamber andinto the cylinder.

The supply of lubricant may be governed by adjusting the collars uponthe tubular extension, to cover more or less of the slots in the saine,and by adjusting the collar upon the stern of the lower valve thiscollar governs the upward rise 0f the upper valve and consequently theilow of lubricant passing through the valve-seat of this valve.

In addition to the elements described above, I prefer to use anauxiliary valve, 35, which is secured in a recess, 3G, in the upper endof the stein 19 by means of a cap, 37, the stem 19 being provided with alongitudinal bore,

38, and the cap being provided with an aperture, 39. In operation, whenthe motive l'luid enters the nozzle 14., it passes up through the bore38 and lifts the auxiliary valve until its upper end closes the aperture39 and prevents the fluid from passing out of the cap. As soon as theexhaust takes place, the auxiliary valve falls, and the lubricant, whichhas passed into the interior of the stein 21, enters the aperture 39 andpasses down the sides of the auxiliary valve, where it remains until thevalve is again raised, when the lubricant passes into and down throughthe bore 88 of the stem 19.

Having th ns described my invention, I claim and desire to secure byLetters Patent of the United States-m 1. In an oil-cup, the combination,with a nipple in the cup or cylindrical easing, having an upwardly and adownwardly facing valveseat in its upper and lower ends, respectively, avalve playing upon the lower valve-seat and having anupwardly-projccting stein, and a double valve upon the upper seat havinga hollow downwardly -projecting stem and a grooved upwardly-projcctingstemof a cap over the upper valve-seat and valve, and formed with anupward tubular extension having longitudinal slots in its lower portion,and adj ustable collars upon its lower portion, and formed with adownwardly-facing valve-seat at the foot ofthe extension, as shown, andfor the pnrpose'specitied.

2. In an oil-cup, the combination, with a nipple in the bottom of thecup having an upwardly-facing valve-seat at the upper end and adownwardlyfacing seat at the lower end, of a valve playing upon thelower seat and having an upwardly-projecting stem formed with anadjustable collar, and a valve upon the upper seat having a tubulardownwardly-extending stem having its end bearing against the collar, asshown, and for the purpose specified.

3. In an oil-cup, the combination of the cylindrical casing,the nipplehaving the valveseats 10 and l1, and the perforated and reduced lowerportieri, 12, the nozzle having the flat seat 16 and aperture 17, thelower valve having the stein formed with the axial. bore and with thegrooved enlargement and provided with the adjustable collar, the uppervalve having the lower tubular stem formed with longitudinal grooves andwith the circumferential groove and with the perforations through it,and having the longitudinallygrooved upper stem, and the cap having thetubular extension formed with the slots and with the adjustable collars,as shown, and for the purpose specified.

In testimonythat I claim the foregoing as my own I have hereunto aiixedmy signature in presence of two witnesses.

GEORGE G. IJREFANTAINE.

Witnesses:

Isaac M. GUY,

A. Gnnuxouen.

IOO

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